html,body{
    width: 100%;
    height: 100%;
}
.login-bg{
    position: relative;
    left:0;
    top:0;
    width: 100%;
    height: 100%;
    min-width: 1200px;
    background: url("../images/login-bg.png") no-repeat center center;
    background-size: cover;
}
.login-box{
    width: 460px;
    height: 260px;
    padding:20px;
    border-radius: 8px;
    opacity: .7;
    background:rgba(255,255,255,0.7);
    position: absolute;
    top:50%;
    left: 50%;
    margin-top: -250px;
    margin-left: -250px;
}
.login-title{
    margin-bottom: 20px;
    border-bottom: 1px solid #ccc;
    padding:0 20px 20px 20px;
}







